Updating of WebApp application

I have been trying for 3 weeks to have my WebApp application to be updated. The problem with our WebApp is that it is not updating with any of the information. I have been trying for 2 weeks to get someone from GoSolr to sort this out as I cannot change the battery settings or anything else as it's still trying to communicate with the 5KVA inverter and not the new 8KVA inverter which was replaced as we upgraded to the larger system. The last email I received was 6 days ago advising that they have sent this to IT to fix. I am actually at my wits end as my system is not working to my liking. I need to be able to change the settings on this app depending on the loadshedding schedule. Please can someone urgently help fix this issue.